Paronychia baldwinii

(Torrey & A. Gray) Fenzl ex Walpers
Repert. Bot. Syst. 1: 262. 1842.
Common names: Baldwin’s nailwort
Basionym: Anychia baldwinii Torrey & A. Gray Fl. N. Amer. 1: 172. 1838
Synonyms: Anychiasatrum baldwinii (Torrey & A. Gray) Small Anychiasatrum riparium (Chapman) Small Paronychia baldwinii var. ciliata Chaudhri Paronychia baldwinii subsp. riparia (Chapman) Chaudhri Paronychia riparia
Treatment appears in FNA Volume 5. Treatment on page 34. Mentioned on page 31.

Plants annual, biennial, or perennial, often matted; taproot slender. Stems prostrate to erect, branched, 5–70 cm, mostly retrorsely to spreading-pubescent on 1 side or throughout. Leaves: stipules lanceolate, 2–6 mm, apex acuminate, entire; blade oblong to elliptic or oblanceolate, 3–25 × 1–6 mm, herbaceous, apex acute and briefly cuspidate, glabrous. Cymes terminal, 20–40+-flowered, diffuse, lax, repeatedly forked or dichotomous. Flowers 5-merous, ± short-cylindric, with enlarged hypanthium and calyx cylindric, 1–1.7 mm, glabrous to pubescent with short hairs, often minutely ciliate, sometimes glaucous; sepals greenish or greenish white to brownish, veins absent, ovate to oblong, 0.8–1.3 mm, herbaceous, margins white, 0.05–0.1 mm wide, scarious to papery, apex terminated by minute cusp, hood narrowly rounded, cusp light green to whitish, straight, short-conic, 0.1–0.15 mm, minutely scabrous; staminodes subulate, 0.2–0.3 mm; style 1, cleft in distal 4/5+, 0.2–0.4 mm. Utricles ellipsoid, 1–1.3 mm, papillate distally.


Phenology: Flowering summer–fall.
Habitat: Dunes, woodlands, fields, clearings, roadsides, riverbanks, hummocks, waste places
Elevation: 0-200 m

Distribution

V5 56-distribution-map.gif

Ala., Fla., Ga., N.C., S.C., Va.

Discussion

Chaudhri used duration and pubescence to recognize two subspecies of Paronychia baldwinii, characters that L. H. Shinners (1962c) found to vary independently in this species.

Selected References

None.

Lower Taxa

None.

... more about "Paronychia baldwinii"
Ronald L. Hartman +, John W. Thieret +  and Richard K. Rabeler +
(Torrey & A. Gray) Fenzl ex Walpers +
Anychia baldwinii +
Baldwin’s nailwort +
Ala. +, Fla. +, Ga. +, N.C. +, S.C. +  and Va. +
0-200 m +
Dunes, woodlands, fields, clearings, roadsides, riverbanks, hummocks, waste places +
Flowering summer–fall. +
Repert. Bot. Syst. +
Anychiasatrum baldwinii +, Anychiasatrum riparium +, Paronychia baldwinii var. ciliata +, Paronychia baldwinii subsp. riparia +  and Paronychia riparia +
Paronychia baldwinii +
Paronychia +
species +